There are already a few standards for a wide range of sensory difference testing methods, such as the discrimination testing, the duo-trio test, the triangle test, the tetrad test, the same-different test, the degree of difference test and the two-out-of-five test. However, there is a need for a guide to help practitioners choose from among these methods. That is why the ASTM has announced the development of a new standard on sensory difference testing.
This guide will provide recommendations for planning, conducting and interpreting results from sensory difference tests. The text will also review testing procedures provided as to when to use which procedure and it will recommend sample sizes based on project goals. The text will suggest references to best practices for executing particular procedures and it will give advice on meaningful interpretation of sensory difference testing results, including a discussion of consumer relevance.
The testing procedures may involve hazardous materials, operations and equipment, however, this standard does not purport to address all the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
Learn more about the development of this standard here.
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